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Evidence-based risk evaluation

Our extensive human fatigue research experience helps you assess and manage your risks.

Our research team has developed a depth of understanding over 40 years of occupational fatigue, its drivers and countermeasures through fundamental and applied research.

Our targeted research helps organisations to understand the fatigue drivers that influence human performance in their environment. In addition to the unpublished results of proprietary studies, our comprehensive understanding of human fatigue, circadian rhythms and cognitive performance is captured in over 100 peer-reviewed publications.

Our research also includes the safe use of medication in aircrew, the effect of altitude on sleep and breathing and the degradation of sleep associated with in-flight rest.

We have undertaken research projects across many safety-critical industries, with a particular deep specialism in aviation and rail. We have worked with UK CAA, EASA, NASA, European Business Aviation Association, UK Ministry of Defence, London Underground, NHS and UK Government Health & Safety Executive, Rail Safety and Standards Board, rail and aviation regulators, unions and many operators.

We also collaborate with many UK and international universities.


fatigue hazards

Studying new or current schedules and routes for operators and regulators

Identifying and measuring the fatigue hazards in the operations based on scientific principles to assist with risk management.

Focus of research

Investigation of fatigue profiles in aviation operations including short haul through to ultra-long-haul; business jets; cargo; helicopters; air traffic control as well as rail and other industries.


Original studies into the drivers of human fatigue

Our biomathematical models are built from one of the world’s largest and growing datasets accumulated from our research since the 1970s.

Did you know...

is associated with clear reductions in performance

Our Research

Operational fatigue studies

Our fatigue studies have identified the contribution of fatigue drivers specific to particular operations.

We have undertaken research to support specific types of operations in aviation, including ultra-long-haul duties in passenger aviation, and the nature of fatigue in business jets and helicopter Search and Rescue operations.

Amongst other research studies, we have studied the fatigue experienced by locomotive drivers and signallers, in collaboration with UK Rail Safety and Standards Board (RSSB).

We have an ongoing research programme including evaluating the use of our models and approach in the health and other industries.

Targeted Studies

Our field and laboratory studies are targeted to identify the contribution of individual factors influencing fatigue drivers and countermeasures.
Our research has identified the the effects of being at altitude on sleep and the effect of quality of rest facilities on sleep.
We have conducted studies into the effects of sleep of seat back angle, noise and light, caffeine and other medication on fatigue and sleep. We have demonstrated the beneficial effects of breaks as a fatigue countermeasure.

Latest Research News & Resources

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An Introduction to Fatigue Risk Management Systems